has been precipitating

• present perfect progressive

  present perfect progressive

  Used to describe an action that began in the past, has continued continuously, and is still in progress.

  of precipitate (3rd person singular).
  precipitate

  verb (used with object)

  to hasten the occurrence of; bring about prematurely, hastily, or suddenly.

Related Words

• accelerate
• expedite
• hasten
• trigger